Coated nail



D MORRIS.

COATED NAIL.

APPLICATION FILED FEB, 23, 19 224 1,428,247, PatentedSept. 5, 1922.

ll llllllllll I lmlnvroe: Dauazns Mann/s I I J AT TORNE Y n S'i'i" earDOUGLAS MORRIS, or cLEvELArI'D, OHIO.

COATED NAIL.

Application filed February 23, 1922. Serial No. 538,526.

T 0 all whom, it may concern:

Be it known that I, DoUoLAs Mourns, a citizen of the United. States,resident of Cleveland, county of Cuyahoga, and State of Ohio, haveinvented new and useful Improvements in Coated Nails, of which thefollowing is-a specification, the principle of the invention beingherein explained and the best mode in which I have contemplated applyingthat principle, so as to distinguish it from other inventions.

My invention relates to .cement coated nails, its object being toprovide a construction in which the properties of the cement may be moreefiicaciously applied and through the medium of which the nail willperform its function in a more efficient manner. The said inventionconsists of means hereinafter fully described and particularly set forthin the claims.

More specifically my invention consists in forming the nail at anysuitable time during or after the process of its manufacture, with oneor more depressions intersecting its outer metallic surface, and thencovering the nail body with'a suitable cement, thus filling thesedepressions with such cement.

I am. of course, aware that nails have heretofore been coated withcementv for the purpose of holding them in place.

In the annexed drawings, Fig. 1 represents a side elevation of a wirenail embodying my invention, the cement coating being indicated bydotted lines.

Fig. 2 represents a cross section of such nail.

Fig. 3 represents a side elevation of a modified form of a nailembodying my invention, the cement coating being shown in dotted lines.

Fig. 4 represents a side elevation of a second modified form of nailembodying my invention, the cement coating being shown in dotted lines.

Referring first to the form shown in Figs. 1 and 2, the illustratedembodiment of my invention comprises a nail, ordinarily made of wire,the outer metallic surface of which is intersected by one or morelongitudinal depressions or grooves 1 of suitable depth and width.Thesegro0.ves extend substantially throughout the length of the body ofthe nail as'sho'wn in Fig. 1, and may be formed by means of a suitabledie or other device during the process of its manufacture,

those skilled in the art.

- stage of the or thereafter, as will be well understood by The nailafter being so formed is then dipped into a suitable cement which formsupon the exterior of a coating 2. This coating fills the grooves and isofv regular exterior cross sectional contour as shown in Fig. 2 wherebythe metallic surface-lying between the grooves is also covered.

By providing the grooves it will be seen that when. the nail is driventhat portion of the cement which resides in the grooves is not detachedfrom the main body of the nail but remains in place thus forming acontinuous permanently located bonding medium throughout the length ofthe body. Furthermore a nail so formed may be withdrawn and again usedwithout destroying the function of all the cement, that portion of thelat-. ter lying in the grooves remaining attached tothe body of the nailand being capable of repeating the exercise of its function.

In Fig. 3 I have shown a modified'form of applying the above describedprinciple of construction, by providing a multiplicity ofcircumferential grooves 3, and Fig. 4 shows a further modification whichconsists in forming a single helical groove 4 which ex tends from end toend of said body portion of the nail.

It will be obvious that the same advantages which are obtained byproviding the longitudinal grooves are similarly secured in the modifiedforms.

As will be readily understood in the art of making nails, these varioustypes of grooves. may be formed at any convenient manufacture of themetallic portion of the nail, or the nails after being formed in theusual waymay be passed on to a special machine or device for formingsuch grooves.

A cement made of any suitable or well known materials heretofore used asan exterior nail coating cement, may be used in depressions intersectingits outer metallic surface, said depressions being filled with suitablecement.

3. As a new article'of manufacture, a nail having its body portiondepressed in a substantially uniform manner throughout its length, suchdepressed portion being filled with a suitable cement. I Y 4. As a newarticle of manufacture a nail provided with a continuous depression ex;tending throughout the length of the nail body, and provided with anouter coating of cementcompletely covering said outer surface andfilling said depression.

5. As a new article of manufacture, a'nail having its body portionprovided with a continuous longitudinal depression upon its exteriorsurface, and a cement filling said depression.

6. As a new article of manufacture, a nail having its bodyportionprovided with a longitudinal depression extending throughout its entirelength, and provided with an outer coating of cement completely coveringthe outer surface of said body portion and filling said depression.

\ Signed by me this 14th day of February,

DOUGLAS MORRIS.

